Robert bell



UNITED STATES PATENT OFFICE.

ROBERT BELL, OF AIMISFIELD, AND ROBERT MAGUIRE, OF SPRIGBURN, SCOTLAND.

HOISTING OR LOWRING GEAR.

SPECIFICATION forming part of Letters Patent No. 599,43*?, datedFebruary 22, 1898.

Application filed Tune 12, 1897. Serial Nox 640,565. (No model.)Patented in England December 15, 1893,11'0. 24,137, and August27,1896,No.18,941.

To a/ZZ whom t may con/cern:

Be it known that we, ROBERT BELL, M. D. of Glenae, Ai'rniseld, nearDumfries, in the county of Dumfries, and ROBERT MAGUIRE, engineer, of 4VellEield street, Springburn, in the county ofthe city of Glasgow,Scotland, have invented certain new and useful Improvenients in Hoistingor Lowering Gear, (patented in England, No. 24,137, dated December 15,1893, and No. 18,941, dated August 27, 1896,) of which the following isa specification.

This invention relates to hoisting and lowering gear of the kind adaptedfor use in warehouses, stores, 'and similar buildings; and it has forits object to relieve the strain upon the hauling ropeor chain and alsoto render automatic the locking and releasing of the bolt or rodattached to the'loaded end of the rope.

The invention is illustrated by the accompanying drawings, Figure 1being a vertical section, Fig. 2 a front view, and Fig. 3 a sideelevation, of the improved hoisting and lowering gear.

The apparatus comprises a bolt, rod, or hook A, from which the load issuspended, and a hauling rope or chain B, attached to the hook A andpassing over a pulley C, centered in a bracket D, adapted to be securedto a beam or rafter or other fixture, the rope B having its other endconnected to a ring or handle. The bracket D, carrying the pulley C, iscomposed of two side cheeks sufiiciently wide to permit of the head ofthe suspending bolt or rod A passing through downward between thecheeks, rests, or ledges I, formed on the inner surfaces of thesecheeks, and inclined guides K, pivoted thereon, preventing the bolt-headon its upward passage from entering between the jaws. The inclinedguides K are formed by the ends of an eyepiece K', pivoted in the jawsD.

The carrying-bracket D is further provided with a pivoted eyepiece E,the pivots being in the sides of the bracket D. The action of theapparatus is as follows: When the goods are raised, the head of the boltor rodApasses through the pivoted eyepiece E and upward through the eyeK', the bolt-head acting on the lower sides of the inclined guides K.When the bolt-head has passed clear of the inclined guides, the loadpulls the rope into its original liue of travel, and on the operatorreleasing the rope the bolt-head slides down the upper sides of theinclined guides, which are pushed aside, as shown in dotted lines, Fig.1, by the descending bolt until the head of the bolt rest-s on theledges I, when the inclined guides K resume their former positionagainst stops K2 on either side of the jaws D. Vhen the goods are beinglowered, the rope is pulled and the bolt-head is thereby caused to passbetween the inclined guides and the rests I until it comes in contactwith the pivoted eyepiece E and raises this against the edges of thecarrying-bracket D, which thus forms a barrier and prevents the bolt Abeing again passed over the guide K, the load being thereafter lowered.

I-Iaving now described the invention, what we claim, and desire tosecure by Letters Patent, is-

1. In combination, the frame D, the pulley therein, the rigid ledges orstops I on the frame, and an inclined guide K pivoted to the frame at apoint above the rigid ledges or stops to direct the pulley-head theretoand to provide a clear way beneath, substantially as described.

2. In combination, the frame D, the pulley therein, the rigid ledges orstops I on the frame, the inclined guide on the frame above the ledgesand a pivoted piece below the inclined guide and adjacent to the rigidledges in the path of the pulley-block head as it leaves the ledges,said pivoted piece being adapted to form a barrier, substantially asdescribed.

Signed at Glasgow, Scotland, this 3d day of May, 1897.

ROBERT BELL. ROBERT MAGUIRE.

Witnesses:

WALLACE FAIRWEATHER, JN0. ARMSTRONG, Junr.

